Type-bar-rebound spring.



A. C. ROEBUCK a.. A. J. STEINKE.

TYPE BAH REBOUND sPnlNG.4

APPLlCATlUN FILED SEPT. 28, 19H.

1,215,706. Pate1.ted 1eb.13,19w.

jrg-Z UNITED STATES PATENT on .ALVAH C. ROEBUCK ANI) ARTHUR J. STEINKE, OF WOODSTOCK, ILLII' '01s, ASSIGNORS, BY DIRECT AND MESNE ASSIGNMENTS, "JTO WOGDSTOCK TYPEWRITIER COMPANY, F

` WOOJSTOCK, ILLINIS, A CORPQRATIN 0F ILLINOIS.

TYPE-EARQEEEOUND SPRING.

11,215,706* `speaeatifm of Letters Patent. Patented Feu 13, 1917, i Application ledSeptemberlZB, 1914. Se1'a1No.863,789.

To mit whom 'it may wacom.' the movement of the type b ar to the printing Beit lmown 'that we, Aman: C, Ronnooin position, and the remaining amount, of the and ARTI-ron J'. STEINKE, citizens of the. travel to take place on the return ofthe typev UnitedStates, rcoidingat VVoodotoclt, inthe bar: 'The dog /amange-d fri the purpose 'of yi county ,of Mc lenry, State of Illinois, have accomplishing this latter tj'peof inovement d invented ,certain .nc'iv and useful lfrnprovecalled a speed dog'. Tle use of a speed mento in Type-Ba1-llebo1.1ml Springs, of dogfhaslieen practical onl` Withfast opera'- Whicl'i the following.;i .is a ssluuiification. tors, i it' the keys are held downward with `Thisii'ivention relatos to` an iuiprm'eu'iont rather slllgggish l'nover lont, the paper 10 in niwrtero, and more pintoularly to an would slide past the face of the type and in'ipil )vcd mechanism tor au ting in the reblur the Ilninting, and so a machine thus tiound oil. the typo hare-after unliaot with the equipliied has not been eitlitable for both 'fast paper to provont liahui'ring the panier. and slow operators. To m lke it possible to The principal object of this invention 1s une a speed dog' for bothslow and fast op L5 vto provide an ijl'niirovod rncclianisrn of this oratore, We provide a stift rebound springy clase which will prevent blurringr ot the which is engaged slightly in advance of ther p: oer and will :nalin it possible to provide point at which the type el'lgapgos the paper, `Speed meolulnioln for looth .toet and slow and this rebound spring Causes the type and -typewrioperators. the type bars to he speedily drawn away i v For the fttaix'ln'iel'lt of these ends and tho 'from the paper imn'iediatrly after Contact,

1ornpliolunent of 'other new` and uslful as will ear, lthe ilrven )n conI in the .lialturoe of novelty in the construe# tionJ (aunliination, and arrangggonicut of the voral parte gonorally shown in tho arcoiri- `rin ,l1 driimvingo and `dossorihcd in the opaciy :rn hut more particularly l'ioin'tcd. out .in `tho E appcl'ulod olaijlno. `ln the drawings, liigguro 'l a view y under oido ot Sonia oli the partowith ivlncl'i the present invention cooperates, illustrating thc apjl'ilication ot the imention. Fi oido olovation oit the sa me. `1 i -a plan view of 'tl'ie rebound i. isidooloration oi tho Horne. and j 1.1. v a view ol. a, rnodifiliation.

lllic ral :au'latrluztion ot typewriter on in... o provider; that upon the uloveu'nout he typcllmr to printingr position, a Inov- `:dolo dog oil the osoapoluout is disougagod from thi.r canape whcol and tho osrapo wheel l allowed to moro about ono truth y(l/IU) 1 tln'` lutter opac-,o distance, at which point it olilgzjuglfos a. uououovahli doo: 'lho other l' ho (fl/lll) ol thc lottor opaco travel lago tahoe; place while the typo `lair io roti rniugr from thc printing poaition. vT'r| .f 'ir hu' to undo: thooscapouumt moro edv1 it hanl boon, the :ustioni to `provide lu froaltor illovoioou i '1o. cauriago than 'l lullin. torno, i ataucoo up to, ao lu?. lll) Vottl'lc travel, on

'from Vcalled a hard touch to the hoy levers.

Relier-ring more particularly to the drawing, a typo har segment 7 escom-ed tothe lralue 8 of a tyl'iewritor and l'iivoted in the segment are a plurality of lype hars 9, only one of which is indicated in the drawing, each of which is moved lly an operating mouiller 10 in the well-known manner. K lfivoted in depenlfliug projections 11 behind the segment 7v Vis la yolo 12 to which is pivotod the rear of a frame [3 secured to the universal hat' 14. The universal bar is proofs-od oy moans of a spring 15 secured to a lined support 1G in the dire :tion of the Sog* nient 7. The type bars are e ich 'formed with a shoulder 117 which engages the universal har 14 and upon the n'iovelnant of each type har rearwardly moves .the u1 iversal bar with it against the tension of its uprlng 15.

Secured to that portion of the frame 8 adjacent the yoke 1,2 is a rc )ouml spring 18 in tho forni of a flat spiral having a projection 19 at one end, `preferably the inside ond. A projection 20 is formed an; the roar-'ot the volte 12 in whichan adj ustal le contact sorinv 21 is movable with a lock'nutZQ for holding it in place. The contact screw Set so `that until, 'the universal` bar is moved almost to "tho projlaition of the spring is not engaged does not interfere with the impact of thetype bar but acts quickly to throw it from printing position.

A modifiedorm is shown by in which a lspring receiver 23 is mounted in the frame 8 in which a plunger 24 is moved one direction beinglimited by means of a' nut 26. A yoke 12 is provided with an adjustable contact screw 21" and the action of this formis similar to that already described,vthe diiference being in the form of thegrebound spring. 'f

We claim:

1. In a typewriter, the combination with type bars, of a universal bar engagedY and moved thereby, means' for movably supporting said bar, and a type bar rebound spring attached to-the 'frame having one end free and spaced from but operable to engage said means when the universal bar is near the end of its stroke to return the type bars quickly from their printing position.

2. In a typewriter, a frame, `type bars movable to a common printing position, a universal'bar engaged thereby, means comprising a pivoted yoke for supporting the bar for reciprocal movement, and a spring supported by the frame and free `from engagement with the yoke except when the universal bar has been actuated and is near the end of the stroke. y

3. In a typewriter, a frame, type bars movable to a common printing position, a universal bar engaged thereby, means comprising a pivoted yoke for supporting the bar for reciprocal movement, and a spring comprising a spiral metal coil attached at one end tothe frame vand having :its other end spaced from but operative ,to engage theiyoke for returningthe type bars quickly from `the printing position to prevent blur- 'ringthe paper.

4. In a typewriter, the combination with a frame, of a plurality of pivoted type bars movable to a common printing position, a. universal bar mounted for movement`in the Aframe engaged and moved by each type bar as the type bar is moved toprinting position., a yoke for supporting the universal bar, and a fiat spring for engaging the yoke and opposing the movement of the universal bar at one end only of its u jovement when any one of the type bars is 'gt or near the 'by means of a spring-.25) the movement in printing position for quickly'returning the*4 type bar from the printing position.

5. In a typewriter, the combination with I a frame, of a universal bar supported for movement in the frame, type bars movableY to a common printing position and adapted to engage and move the Auniversal bar in their movement, a spring to return the universal bar, and means comprisingY an additional spring secured at one end to'the frameand having one free end-andvadapted to oppose the movement of the universal bar only when anyv one of the type bars is near the printing position for causing the type;

bar to ,rebound t p I quickly from the printing posi lon. l

6. In a typewrlter, the combinationiwith av frame, of `a pivoted yoke depending therefrom, a universal bar supported by the yoke f for reciprocating movement, pivoted type bars .to engagethe universal bar and to move it and the yoke rearwardly, meansJ to return the universal bar, and a type bar rebound spring V,secured to the frame` and adapted to engage the yoke when the universal bar is ladjacent the yend of its backward movement for quickly returning the universal bar and any one of the type bars. 7. In a typewriter, the combination with a frameof a pivoted yoke depending therefrom, a universal bar supported by the yoke for reciprocating movement, pivoted type bars to engage the universal bar and to move it and the yoke rearwardly, means to return the universal bar, a type bar rebound spring .secured lto the frame and adapted to engage the yoke when the universal bar is adjacent the end of its backward movement for quickly returning the universal bar and any one of the type bars, and an adjusting screw in connection with the yoke for varying the point at which the rebound spring is engaged. Y

'8. In a typewriter, the combination with a frame, of a pivoted yoke depending therefrom, a'universal bar supported by the yoke.

for reclprocating movement, pivoted type bars to engage the universal bar and to move it and the voke rearwardly, means to return the universal bar, and a Hat spiral nel rebound spring'secured at one end to the oted type bars-tol engage and move the universal bar rearwardly and to move the yoke adjacent the frame, an adjustable contact for horizontally reciprocating motion, pivmember in connection with the yoke, and a ence of tvro subscribing wit lesses, on this type bar rebound spring secured to the 24th day of September A. D 1914;.

frame and adapted to engage the Contact ALVAH C. ROEBUCK. member when the universal bar is near the ARTHUR J. STEINKE. 5 end of its rearward movement. Witnesses:

In testimony whereof We havetsigned L. E. HOUSHOLDER,

our names t0 this specification, in the pres- VM. P. NOBLE. 

